Business Process Driven SOA using BPMN and BPEL

Transcription

1 Business Process Driven SOA using BPMN and BPEL From Business Process Modeling to Orchestration and Service Oriented Architecture Matjaz B. Juric Kapil Pant PUBLISHING BIRMINGHAM - MUMBAI

2 Preface Chapter 1: SOA and Business Processes 5 Why Care about Business Processes? 7 Examples of Business Processes 8 How Business Processes Emerge 11 How Business Processes and IT Relate 12 IT Flexibility 13 Heterogeneous Architecture 14 Traditional Software Lifecycles 16 Why Do We Need SOA? 16 Why Should We Believe This? 17 SOA Approach to Business Processes 19 Major Improvements in the SOA Approach 21 Focus on Content, Not Technology 24 Management Support 25 SOA Competency Centre 26 SOA Inception 26 SOA Forces 28 Value of SOA for IT Departments 29 Changes in the Development Approach 30 Reduced Complexity 32 Technical Introduction to SOA 32 BPMN 34 BPEL 34 Features 36 Services 36 Service Interfaces 38 Messages 38 Synchronicity 38 Loose Coupling 39

3 Quality of Service 39 Other Important Parts of SOA 39 Enterprise Service Bus 40 Registry and Repository 42 Rules Engines 43 Business Activity Monitoring 44 User Interactions 45 How SOA, BPMN, and BPEL Fit Together 47 Agility 50 Resilience 50 Alignment Between Business and IT 50 New Business Models 51 How the Puzzles Fit Together 51 SOA Vendors 52 Summary 53 Chapter 2: Modeling Business Processes for SOA 55 Business Process Management 56 IT and BPM 56 SOA and BPM 58 Business Process Lifecycle 59 BPM and SOA A Perfect Fit for the Lifecycle 60 Business Process Modeling 62 Modeling Method and Notation 63 ARIS 63 Modeling Notation 66 BPMN 66 Process Design 69 Results of Process Modeling 71 Process Map 71 Roles and Relations Structure 72 As-is Process Model 73 Publishing and Communicating Process Models 82 Process Simulation 82 Tools for Simulating Processes 83 Modeling Principles 84 Common Problems in Process Modeling 85 Process Implementation 87 Classic Software Development 88 Standardized ERP Solutions 90 Service Oriented Architecture 91 Process Implementation Phase with BPEL 92

4 Process Execution and Control 93 SOA for the Process Execution and Control Phase 93 Business Activity Monitoring 94 Process Optimization 96 The To-be Process Model 98 Key Performance Indicators 99 Typical Problems in Process Optimization 100 Summary 101 Chapter 3: BPMN for Business Process Modeling 103 The Need for Standards in Business Process Modeling 103 Business Process Classification and BPMN 104 Business Process Diagrams Core Elements 108 Business Process Diagrams A Deeper Analysis of the Key Elements of BPMN 111 Events 111 Activities 115 Task 118 Gateways 120 Sequence Flow 123 Message Flow 124 Association 125 Pool 126 Lanes 126 Data Object 126 Group 127 Text Annotation 128 Introduction to Oracle Business Process Analysis Suite 128 Developing an Example Process Using BPMN and the Selected Tool 132 Summary 137 Chapter 4: BPMN Advance Constructs 139 Business Process Modeling General Guidelines 139 Rule #1: Process Models Should Provide Aid in Process Understanding 139 Rule # 2: Match Each Split with a Join 140 Rule #3: Have a Well-Defined Start and End Event 143 Rule #4: Look Out for Orphan Tasks 143 BPMN Attributes and Tools Support 144 Business Process Diagram 147 Process 149 Sub-Process 151 Events in Detail 152

5 Start Events End Events Intermediate Events Process Modeling Patterns and BPMN Basic Control Patterns Simple Sequence Branching and Synchronization Patterns Multi Choice Structured Synchronizing Merge Multi Merge Iteration Based Patterns Arbitrary Cycles Structured Loop Termination Implicit Termination Explicit Termination Multiple Instance Pattern Multiple Instances without Synchronization Multiple Instances with a Priori Design-Time Knowledge Multiple Instances with a Priori Run-Time Knowledge State-Based Patterns Deferred Choice Summary Chapter 5: Process Analysis and Transformation From BPMN to BPEL 191 Business Process Analysis Using Simulation 192 The Business Process Model and Data input 192 Simulation and Scenario Analysis 197 Model Target Process 202 Business Process Transition: Bridging the Business IT divide 203 BPMN to BPEL Key Considerations 204 BPMN Specification for BPEL Mapping 204 Tools to Support BPMN-BPEL Transformations 204 Oracle BPM Suite: Oracle BPA and SOA Suite for BPMN-BPEL Mapping 205 Process Detailing for Transition A Look into Oracle Extensions for BPMN and BPEL 209 Business- IT Synchronization using Process Blueprint 220 Transformation Case Study 226 Business Process Overview What is 'Portfolio Account Opening?' 226 Business Process Transformation Modeling and Analysis 228 Business Process Detailing for Transformation 230 Model Validation before Transformation 234 Automatic Mapping of BPA Elements for BPEL 235 Generate Business Process Blueprint 236 [iv]

6 Retrieve the Business Process Blueprint 239 Create a BPA Connection for Importing the Blueprint 239 Create a BPEL Project 241 Blueprint View and BPEL View 244 Add Implementation Details 249 Deploy and Test 250 Updating the BPA Server 251 Summary 252 Chapter 6: Business Process Orchestration for SOA 253 BPM Architecture and Role of Business Process Orchestration 253 Executing BPEL Processes in BPEL Process Manager 256 Initiation of the Process Instance 256 Accessing a Human Task through the Worklist Application 260 Task Invocation from BPEL Process Manager and its Integration with Worklist Application 265 Introduction to Business Rules Management 275 What are Business Rules? 275 Business Rules Anatomy 276 Automating Business Rules 276 Automating Business Rules for Business Issues 277 Business Rules Management, BPM, and SOA 278 Key Considerations for Selecting a BRMS 281 Key components of a BRMS A Brief Look into Oracle Business Rules 281 Implementing Business Rules The Business Rules Development Process 284 Introducing Business Activity Monitoring 294 What is BAM? 294 BPM, SOA, and BAM 295 Oracle BAM 297 Oracle BAM and BPM 300 Summary 305 Index 307